Question 1 (1 point) What is the stopping potential voltage, in V, of an electron that has 9.72 × 10-19 J of kinetic energy in a photoelectric cell. Record your answer to two digits after the decimal point. No units Your Answer: Answer
Question 2 (1 point) Two identical electrically conductive spheres have a mass of 15.9 g each and initial charges of +8.45x10-5C and -6.71x10-5℃. The spheres are brought into contact, without grounding, and separated. Then they are positions such that the distance between their centers is 87.5 cm. One of the spheres is then released. The magnitude of the acceleration of the sphere due only to the electrostatic force at the instant that the sphere is released is _____m/s² Record your answer to two digits after the decimal. No units. Your Answer: Answer
Question 1 (1 point) What is the stopping potential voltage, in V, of an electron that has 9.72 × 10-19 J of kinetic ene
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